Rotary paper-gumming machine



March 12, 1929.

J. G. HUYE 1,704,797

ROTARY PAPER GUMMING MACHINE Filed June 24, 1926 3 Sheets-Sheet l March12, 1929. HUYE 1,704,797

ROTARY PAPER GUMMING MACHINE Filed June 24, 1926 3 Sheets-Sheet 250670607: J53pk GLHige,

March 12; 1929. J GKHUYE 1,704,797

ROTARY PAPER GUMMING MACHINE Filed June 24, 1926 5 Sheets-Sheet 3 w zlrwenorz 1 w :Toae haz 6,

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Patented Mar.12, 1929.

UNITED STATES JOSEPH G. HUYE, OF NEW ORLEANS, LOUISIANA.

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Application filed 'J'une 24, 1926. Serial No. 118,248.

This invention relates to a machine for gumming or coating paper withadhesive, and I has particularly in view arts, such as covering ofcandy, millinery etc. boxes, where the paper as thus gummed or coated,is to be taken from the machine still damp, though seasoned, and applieddirectly to the articles on which it is to be used.

' The primary objects of this invention are: to provide -.a rotarygumming or adhesive coating machine; to provide sure'means for strippingthe coated paper from the rotary gumming or coating means; to providemeans for distributing the adhesive, such as paste or glue, evenly overthe paster roll or means and so avoiding the creation of striationsinthe. coating; and to provide a plurality of different size presserfeet which may be combined in a great variety-of arrangements with thecarrying means to provide the desired size composlte presser foot foruse in gumming a particular size sheet of paper.

In the accompanying drawings, in which I have shown only the preferredform of my invention merely b way of illustration of the practice thereoas by law required, but with no intentionof being limited or restrictedto said embodiment, it being recognized that the invention is capable ofembodiment in a variety of forms:

Figure '1 represents atop plan view'of a machine embodying my invention;

Figure 2, a side elevation thereof;

Figure 3, a sectional view on the line 33 of Fig. 1; and I Figure 4:, afragmentary detail view of the pastor and the superposed resser shaft,Presser-feet carrying discs, an the presser foot as built up to itsextreme possible width, also indicating in dotted lines the outercarrying discs as moved toward the similar central carrier disc i tosupport the side portions of an extra wide presser foot section carriedby said central carrier 4.

Referring now in detail to the drawings, the main machine frame, thatpart carrying all the shaft bearings, excepting those of .the spreaderbrush and the front conveyer roll, will preferably be of one integralcast piece, though this is not vital, and comprises two roughlytriangular shape ends A connected as usual by integral bars orbeams C.The shafts 1', 3 and 5 respectively of the paste or glue supplying roll2, the vpasterroll 6 and the carriers i are all mounted in suitablebearings in said ends A with their axes all parallel to eachother, theaxes of said shafts 1 and 3 being relatively immov .able, all of theaxes of said shafts being preferably arranged, as illustrated, in thesame vertrcal plane, though this is not essential; and the shaft 5 beingmounted in suitable manner, not shown, to be slidable in a verticaldirection in slots or guideways, not shown, in said ends A and beingforced-toward the shaft 3 by suitable compression springs, not shown, inthe usual well known manner,-said shaft 5 being capable of being movedaway from the shaft 3 sufliciently so that in case the operator misses ablank sheet to be gummed, or such sheet for any reason is not gripped bythe rotary gumming elements, the presser foot carried by the carriers 4on shaft 5 ma bemoved away from .the paster-roll 6 a su cient distanceso as to be out of the path of travel thereof, say a sixty-fourth of aninch, and so will not be coated with adhesive.

A worker or squeegee roll 10 fixed on shaft 11 extends through enlargedor elongated open ngs in the ends A and is mounted in brackets 13pivotally adjustable about bolts 14 respectively, and may be locked inadjusted position by bolts 15 turning into the respective ends A throughslots 16 in said brackets, which may be provided with set screws 17respectivel A drive wheel or fielt wheel E is keyed to the shaft 3outside of said frame and is driven by a belt, not shown, driven by-amotor, not

. shown, or in any usual and suitable manner.

The, shaft 11 ofthe squeegee roll 10 has secured to its end portionadjacent to the gear 18 a gear 21 normally in mesh with said gear 18 tobe driven thereby, so that the squeegee roll 10 and paste or gluesupplying roll 2 will rotate in opposite directions. The squeegee roll10 may be adjusted toward or from thepaste supplying roll 2 as theoccasion therefor arises by means of operating the bolts 14 and 15suitably and swinging the brackets 13 about the bolts 14; as required,as usual.

The glue or paste pot I is of usual construction, as illustrated inFigures 2 and 3, having the central portion of its upper end edges cutout so as to fit about the shaft 1.

To feed the blanks to the best advantage feed bar 32 extending acrosssaid work table J. So that the range of movement of the feed bar orkicker 32 and the time thereof may be fairly closely adjusted by meansof the above construction in accordance with present known practice.

A carrier tray, preferably a cardboard sheet 7 secured to a wood strip 8is adapted to be secured in centered position to the bar 32 and clampedagainst the same and exactly parallel thereto by any suitable clamps orequivalent means 9 of any known construction. Further, said tray isprovided with a side guide wooden strip or piece 12 extending from, andat right angles to, strip 8 intermediate the ends of the latter. Theoperator lays the sheet to be gummed successively one at a time on saidcardboard sheet 7 with the rear edge of each sheet in contact for itsfull length with wooden strip 8 and with its side edge in engagementwith the strip 12 for the full length of the latter.

Of course the cardboard sheet 7 will be, as shown in Fig. 3, ofappreciably less length than the sheet of paper a to be gummed, in

' order that the end of the latter may be shoved between, and grippedbetween, the presser foot 38 and the paster-roll 6 as the said sheet ofpaper a is carried forward to extreme forward position as above setforth.

The paster-roll 6 is provided with annular grooves preferably spaced atabout two inch intervals for the full length of said roll 6 andpreferably having sharp inner corners, andthe inner lateral portions ofthe stripper and conveyer rubber bands or belts 35 will be rounded offor cut away in order that the bands may readily seat themselves in theirrespective grooves and will have free running non-clinging engagementtherewith.

The size and shape in crosssection of said stripper and conveyor bandsis such that when fully seated in their respective grooves their outerfaces will be flush with the face of said paster roll 6 to present acoiitinuous unbroken composite paster roll face so as to apply anunbroken coating of adhesive co-extensive with the presser-foot- 38employed. 1

These stripper and conveyer bands 35 extend about the paster roll 6 andan idler 36 provided with similarly shaped and spaced annular groovesand carried in the beams 22, the length of said bands 35 being such thatthey are kept taut, or sufliciently so, to be positively driven, likeanother driven'belt, by their engagement wit 1 the paster roll 6 and,being so close together, they will serve to strip the gummed paper fromthe paster-roll 6 as the bands-35 leave the same.

The arms 22, and consequently the length of the bands 35, illustrated inFig. 2 as broken away and so of no definite or proportionate length, may'be of any length desired to suit the number of operatives employed inremoving the coated or gummed sheets in accordance with the speed ofoperation of the machine, or may be of such length in relation to thespeed of operation of the machine that by the time the gummed paperreaches the roll 36 the moisture of the coating will have permeated orthoroughly dampened the paper or seasoned it so as to be in conditionfor immediate application to a box or other article, so that the lengthof the conveyer may vary from a foot or so up to forty or fifty feet ormore as desired to meet the greatly varying conditions that may exist.

The grooved or slotted carrying discs or rolls 4 are adj ustablyslidably keyed to their shaft 3, and each of them is provided with acentral deep peripheral groove or slot adapted to receive the tails orstubs 37 of the presser members constituting singly or with others thepresser foot 38, such a composite foot being illustrated in Fig. 1, anda differently arranged composite presser foot 38 being illustrated inFig. 4, merely to demonstrate the adaptability of themachine to' varioussizes of sheets to be coated, all of the individual presser members orelements 38 being all cut from the same stock and on the same are, theirinner faces in each instance fitting snugly at all points against theopposed portion of the periphery of the disc 4 on which they aremounted, and the thickness of the feet 38 is such that, as illustratedin Figures 3 and 4, when mounted in the discs or carriers 4 and rotatedtherewith they will contact with paper sheets fed between them and thepaster roll 6 and press said paper sheets against said roll 6 to coatthe faces of the respective sheets a presented to the paster-roll 6 withpaste or adhesive for the full area of the particular presser foot 38employed, whether it be a single foot or a composite presser foot 38, asshown in either Figure 3 or 4.

Experience in coating paper with adhesive has demoust rated the factthat apparently too much glue or adhesive is picked up, or picked upunevenly, with the result that striations are formed, and also verydefinite ridges of paste or glue are formed about the edges of thecoated area, so that in the further use of the paper the excess adhesivemaking up such ridges is liable to be forced out with damaging resultsto other material which may be pressed against the same.

The present invention has sought to cure this defect by providing meansfor wiping the Ill) excess adhesive from the plaster-roll 6 and to leavebut a very thin uniform film thereon 4 as'the face thereof-passes agiven point in its i the surface of'the paster-roll. 6 at the point ofengagement thereof with the wiping means, and to this end I haveprovided in this embodiment a rotary wiping brush 40 mounted on a shaft41 mounted in brackets 42 clamped by bolts 43 to the frame asillustrated in Fig. 3. and driven by belt 44 passing over pulleys onshafts 3 and 41 so that the adjacent portion of the brush or wiper 40will be rotating downwardly in opposition to the upward rotary movementof the adjacent portion of the paster-roll 6.

The shaft 5 is slotted for its full length as at 45, as illustrated inFigures 1 and 3, and the carrier discs 4 are each provided with abinding locking screw 46 which normally seats in said slot to act as akey to prevent independent rotation between the shaft 5 and said carrierdiscs 4, and also binds in said slot in order that after said carriershave been adjusted to desired positions. they may be locked againstmovement endwise of said shaft by tightening up their respective bindinglocking screws 46.

The size of the presser foot 38 employed will vary. If a small sheet isto be gummed, say three inches long by two inches wide, a single presserfoot element 38 of correspond .ing size will be mounted in the centralcar rier 4. If, however, a sheet say nine inches long by six inches wideis to be gummed, a composite presser foot 38 cmprising a plurality ofpresser elements all six inches wide and varying in peripheral length,say one one inch, one two inch, and two .three inch, may be employed,all mounted in the central carrier 4, as illustrated in Fig. 1.

If, however, a very wide sheet is to be wide long composite presser foot38, as illustrated in Figure 4; or, where a. wide sheet is to begunimed, but of such width that it may be accomplished by using thewidest elements in a single peripheral series, the outer carrier discs 4may be moved over to the dotted line position indicated in Fig. 4 so asto support the sides of said presser elements.

The presser foot 38, whether of a single element or built up willpreferably be about one sixteenth of an inch shorter and narrower thanthe sheet to be gummed and will be, of course, centered therewith, so asto leaye a margin of about one thirty-second of an inch ungummed toavoid risk of squeezing paste upon the presser foot. Of course themargin mentioned is given merely as preferred and by way ofillustration.

- The presserfoot 38 may be built up so as to be equal in width to thelength of the paster-roll 6, and may be of such length in a peripheraldirection as tobe almost a continuous circle, but cannot be quitecontinuous, a gap or break bein necessary in order that the timing ofthe feed may be regulated properly so as to maintain the exact registryrequired.

Each presser foot carrying element 4 is provided in one side, asillustrated in Fig. 3, with a plurality of laterally extendingscrewthreaded bores 47 to receive binding-screws 48 respectively toclamp against the ribs or tails 37 of the presser foot elements 38 tohold said elements correctly positioned in the respective elements 4',the plurality of bores permitting the use of a number of such elements38 on each carrier element 4 and the location of the presser foot 38,whether a single presser element or a built up composite foot 38, at anypoint about the periphery of the elements 4 so that the timing mechanismwill not need to be extensively adjusted at any time, though of courseit will require to be adjusted some to obtain correct registrypractically whenever a different length of sheet is to be gummed. I

From the above it is obvious that if the operator fails to correctlyplace a sheet or for any other reason a sheet fails to be grippedbetween the paster-roll 6 and presser foot 38, the presser foot 38. willcome into direct contact with the paster-roll 6 and will be coated withpaste therefrom. To enable the operator to avoid this, I apply bracketarms 49 to each end of shaft 5 and pivotally connect the lower endsthereof to a U-shape frame 51 having its free ends pivotally mounted bybolts 52 on the ends A of the frame considerably in front of the shaft 5and below the same and having its bar extending across just beneath therear end of the Work table J so that the operator, in the conditionsmentioned, may'simply squeeze his hand together about the rear edge ofthe table J and frame 51, moving the bar of the latter toward table Jand so raising the shaft 5 sufiiciently, say about one'sixty-fourth ofan inch, away from shaft 3 so that presser foot 38 will not come intocontact with paster roll 6.-

The ribs or tails 37 of each presser foot element 38 may be formed withgrooves 52 in which the screws 48 engage.

The presser foot elements 38 and the pasterand will vary in length, in aperipheral direction, in each width size from say three to I twelveinches,increasing inlength by eighth inches up to four inches, andthereafter by inch increases. Of course the exact number of presserelements, Widths, lengths, variations in sizes etc. will be largelyregulated by the needs of the field in which the particular machine isprimarily to be used and by the preferences of the purchaser oroperator.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

In combinatiompaste supplying means, a rotary paster-roll receivingpaste from said means, a rotary resser-foot, means for feed ing blanksheets at regular intervals to be gripped between said paster-roll andsaid resser-foot, said paster-roll being formed with a plurality ofannular grooves spaced at regular close intervals in an axial direction,and a plurality of endless bands respectively seating in and travelingabout said pasterroll for stripping the gummed sheets therefrom as saidroll rotates, said endless bands fitting in such grooves in such mannerthat their outer faces of the portions so fitting in said grobves beforesaid bands begin to leave said roll will lie flush with the face of saidroll to constitute in effect a continuation

